# Companies using GSM

2,319 companies name GSM in their own job posts. Its share of job posts is shrinking, though 2,181 job posts still named it from October 2025 to August 2026. Skilled Trades roles mention it most.

Data as of November 9, 2026. Source: Sumble.

## Which companies name GSM in the most job posts?

Among the companies with the most job posts naming GSM are Apple (938), Ericsson (694) and Vodafone (523). 1GLOBAL is the newest of the five companies in the table, with its first job post naming it in September 2023.

| Company | Job posts | People | Recent job post |
|---|---:|---:|---|
| [Apple](https://sumble.com/orgs/apple) | 938 | 1,326 | "…candidate needs to have strong RF test/certification experience in BT/WLAN/NFC/UWB/WPT/GSM/UMTS/ LTE/5G/MSS.","responsibilities":"Manage/engage external ministries/regulators/certification…" (Regional Regulatory Compliance Engineer, Oct 2, 2026) |
| [Ericsson](https://sumble.com/orgs/ericsson) | 694 | 18,152 | "The candidate should have high level Network Topology skills (GSM, WCDMA, LTE, IT, etc)." (incident manager, Nov 4, 2026) |
| [Vodafone](https://sumble.com/orgs/vodafone) | 523 | 4,719 | "Basic system and GSM knowledge (Essential)" (specialist lea, Sep 19, 2026) |
| [Nokia](https://sumble.com/orgs/nokia) | 131 | 16,404 | "Knowledge of GSM, UMTS, LTE and 5G networks is an advantage." (fault management l2 engineer - oss, Sep 15, 2026) |
| [1GLOBAL](https://sumble.com/orgs/1global) | 103 | 67 | "Proven experience on implementation of live solutions on mobile telecom (GSM, UMTS, LTE, IMS), networks design, capacity management, engineering and architecture" (Voice and Services Engineer (Lisbon based), Nov 1, 2026) |

## Is hiring for GSM growing?

A smaller share of job posts mentioned GSM from June to August 2026 than from March to May: 0.99 in every 10,000 job posts, down from 1.2. Its busiest month was October 2025, at 1.4.

| Month | Job posts naming it | All job posts | Per 10,000 job posts |
|---|---:|---:|---:|
| Oct 2025 | 194 | 1,413,673 | 1.4 |
| Nov 2025 | 218 | 1,822,119 | 1.2 |
| Dec 2025 | 152 | 1,236,103 | 1.2 |
| Jan 2026 | 244 | 1,828,002 | 1.3 |
| Feb 2026 | 199 | 1,856,647 | 1.1 |
| Mar 2026 | 213 | 1,850,711 | 1.2 |
| Apr 2026 | 193 | 1,728,886 | 1.1 |
| May 2026 | 218 | 1,821,509 | 1.2 |
| Jun 2026 | 213 | 1,909,496 | 1.1 |
| Jul 2026 | 174 | 1,815,180 | 0.96 |
| Aug 2026 | 163 | 1,835,698 | 0.89 |

## How many companies named GSM in a job post for the first time in recent months?

Job posts named GSM for the first time at 66 companies from June to August 2026, against 76 from March to May. Over the 11 months from October 2025, 252 companies posted their first job naming it.

| Period | Companies naming it in a job post for the first time |
|---|---:|
| March to May 2026 | 76 |
| June to August 2026 | 66 |
| October 2025 to August 2026 | 252 |

Companies whose first job post naming it appeared in that period. Recruiters, staffing firms and job boards are left out.

## How do we know which companies use GSM?

97% of the companies here are known from employees' profiles alone, and 3.2% name GSM in their own job posts. 1,184 show up in both job posts and employees' profiles.

| How we know | Companies | Share |
|---|---:|---:|
| Job posts name GSM | 2,319 | 3.2% |
| Employees' profiles list GSM | 69,896 | 97% |

## What size are the companies that use GSM?

Companies with fewer than 50 employees are 1.3 times as common among GSM users as on the typical tech page. 356 of its companies have more than 5,000 employees. These counts cover the 2,319 companies whose job posts name it.

| Size | Share | Typical tech page |
|---|---:|---:|
| Under 50 employees | 34% | 26% |
| 50 to 999 | 38% | 37% |
| 1,000 to 5,000 | 13% | 15% |
| Over 5,000 | 15% | 22% |

## Where are GSM companies based?

The United States has the most GSM companies (28%), but France stands out: 9.8% of them, against 5% on the typical tech page. Its companies are based in 77 countries and territories. These shares cover the 2,319 companies whose job posts name it.

| Country | Companies | Share | Typical tech page |
|---|---:|---:|---:|
| United States | 608 | 28% | 48% |
| India | 307 | 14% | 7.5% |
| France | 209 | 9.8% | 5% |
| United Kingdom | 114 | 5.3% | 6.3% |
| Germany | 91 | 4.3% | 4.4% |
| Belgium | 59 | 2.8% | 0.79% |

## Which teams work with GSM?

Job posts most often place GSM with engineering, R&D and IT teams. Operations teams come fourth, at 14 companies.

| Team | Companies |
|---|---:|
| Engineering | 25 |
| R&D | 19 |
| IT | 17 |
| Operations | 14 |
| NOC | 10 |
| Sales | 9 |

## Which roles mention GSM most?

Skilled Trades job posts naming GSM grew the fastest among its top roles: 46 from June to August 2026, up from 29 from March to May. The top four roles cover 21% of these job posts.

| Role | Share | Oct 2025 to Aug 2026 | Mar to May 2026 | Jun to Aug 2026 |
|---|---:|---:|---:|---:|
| Skilled Trades | 6.5% | 141 | 29 | 46 |
| Telecommunications Engineer | 5.8% | 126 | 44 | 26 |
| Electrical Engineer | 4.4% | 96 | 32 | 19 |
| Software Development Engineer in Test | 4.1% | 90 | 25 | 27 |
| Customer Engineer | 4.1% | 89 | 17 | 15 |
| Software Engineer | 3.9% | 85 | 21 | 19 |

## Which companies started naming GSM in job posts recently?

From April to August 2026, 67 companies with 50 or more employees posted their first job naming GSM: 40 commercial, 14 mid-market and 13 enterprise. Teltonika leads the new mid-market companies, with 5 job posts from April to August.

| Group | Company | Job posts, April to August 2026 |
|---|---|---:|
| Commercial | [URBIO](https://sumble.com/orgs/urbioromania) | 4 |
| Commercial | [Proximus Luxembourg](https://sumble.com/orgs/proximus-luxembourg) | 3 |
| Commercial | [KritiLabs Technologies](https://sumble.com/orgs/kritilabs-technologies) | 3 |
| Commercial | [Dico Telecomunicaciones S.A.](https://sumble.com/orgs/dico-telecomunicaciones) | 3 |
| Commercial | [Tours Métropole Val de Loire](https://sumble.com/orgs/tours-metropole-val-de-loire) | 2 |
| Mid-market | [Teltonika](https://sumble.com/orgs/teltonika) | 5 |
| Mid-market | [Northern](https://sumble.com/orgs/northern-trains) | 2 |
| Mid-market | [U Mobile](https://sumble.com/orgs/u-mobile) | 2 |
| Mid-market | [Ortec Group](https://sumble.com/orgs/ortec-group) | 1 |
| Mid-market | [Turkcell Global Bilgi](https://sumble.com/orgs/turkcellglobalbilgi) | 1 |
| Enterprise | [AUMOVIO](https://sumble.com/orgs/aumovio) | 4 |
| Enterprise | [Hubbell Incorporated](https://sumble.com/orgs/connector-manufacturing-company-ref) | 2 |
| Enterprise | [Schneider Electric](https://sumble.com/orgs/schneider-electric) | 1 |
| Enterprise | [Toyota Motor Corporation](https://sumble.com/orgs/toyota) | 1 |
| Enterprise | [Virtusa](https://sumble.com/orgs/virtusa) | 1 |

Companies that named GSM in a job post for the first time between April and August 2026, ranked by their job posts in those months. AI-native companies get a group of their own, whatever their size. Recruiters and job boards are left out.

## What else do GSM companies use?

UMTS and CDMA are the tools most closely tied to GSM. Among the tools listed here, LTE is the most widely used, at 43% of GSM companies.

| Tool | Companies | Also name it | Typical | Times as common |
|---|---:|---:|---:|---:|
| UMTS | 339 | 21% | 0.13% | 157 times |
| CDMA | 214 | 13% | 0.1% | 133 times |
| GPRS | 203 | 13% | 0.14% | 91 times |
| iBwave | 85 | 5.3% | 0.09% | 59 times |
| LTE | 683 | 43% | 0.93% | 46 times |
| CoAP | 81 | 5.1% | 0.2% | 25 times |
| 5G | 532 | 33% | 1.4% | 24 times |
| Zigbee | 145 | 9.1% | 0.39% | 23 times |

Shares are out of the 1,601 companies whose job posts name GSM, not counting firms whose job posts name almost every technology.

## About this data

Sumble built this page. Sumble gives sales, marketing and other GTM teams technographics and hiring signals for the companies they sell to: the technologies each company uses, which teams are hiring and for what, and who reports to whom. That helps a team know who to contact, why now, and what to say.

Sumble covers more than 3.6 million companies, 93 million job posts collected since 2022 and 194 million employee profiles, and tracks more than 37,000 technologies. It finds which technologies a company uses by reading its job posts and its employees' public profiles.

Sumble has a free plan, and the same data is available through its API and MCP server.

A company counts when its own job posts or its employees' public profiles name the technology. Hiring is that technology's share of all job posts collected each month. Quotes are copied word for word from the companies' job posts.

Every figure on this page comes from Sumble's own analysis, and you won't find it outside Sumble.